From: Lee Revell <rlrevell@joe-job.com>
To: Vojtech Pavlik <vojtech@suse.cz>
Cc: Adam Goode <adam@evdebs.org>, Pavel Machek <pavel@suse.cz>,
Alejandro Bonilla <abonilla@linuxwireless.org>,
linux-kernel@vger.kernel.org, linux-thinkpad@linux-thinkpad.org
Subject: Re: IBM HDAPS Someone interested?
Date: Tue, 21 Jun 2005 13:36:03 -0400 [thread overview]
Message-ID: <1119375363.4569.2.camel@mindpipe> (raw)
In-Reply-To: <20050621164519.GA11601@ucw.cz>
On Tue, 2005-06-21 at 18:45 +0200, Vojtech Pavlik wrote:
> On Tue, Jun 21, 2005 at 11:37:38AM -0400, Lee Revell wrote:
> > Ugh, if userspace can't meet a 300ms RT constraint, that's a pretty
> > shitty OS you have there.
>
> It's not that you do one measurement in the 300ms. You need to do at least
> 100, and some computations, too.
>
> > This should certainly be done in userspace on Linux.
>
> So it's a 3ms RT constraint, which is not as easy.
>
Heh, we do it all the time with JACK.
But, I think I was wrong anyway, you'll have to do it in the kernel
because you would need PREEMPT to meet that with any degree of
certainty.
Lee
next prev parent reply other threads:[~2005-06-21 17:36 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-20 15:18 IBM HDAPS Someone interested? Alejandro Bonilla
2005-06-20 15:57 ` Vojtech Pavlik
2005-06-20 16:16 ` Alejandro Bonilla
2005-06-20 16:34 ` Vojtech Pavlik
2005-06-20 16:53 ` Alejandro Bonilla
2005-06-20 16:57 ` Pavel Machek
2005-06-20 20:35 ` Yani Ioannou
2005-06-20 20:45 ` Vojtech Pavlik
2005-06-20 21:25 ` Pavel Machek
2005-06-20 21:30 ` Adam Goode
2005-06-21 15:37 ` Lee Revell
2005-06-21 16:45 ` Vojtech Pavlik
2005-06-21 17:36 ` Lee Revell [this message]
2005-06-21 18:16 ` Valdis.Kletnieks
2005-06-22 14:37 ` Sander
2005-06-22 14:52 ` Alejandro Bonilla
2005-06-20 21:45 ` Pavel Machek
2005-06-20 21:54 ` Alejandro Bonilla
2005-06-20 23:45 ` Alejandro Bonilla
2005-06-20 17:04 ` [ltp] " Lenz Grimmer
2005-06-20 17:17 ` Alejandro Bonilla
2005-06-20 18:57 ` Pekka Enberg
2005-06-20 20:13 ` Andrew Haninger
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1119375363.4569.2.camel@mindpipe \
--to=rlrevell@joe-job.com \
--cc=abonilla@linuxwireless.org \
--cc=adam@evdebs.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-thinkpad@linux-thinkpad.org \
--cc=pavel@suse.cz \
--cc=vojtech@suse.cz \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox